Traction device



C. PARENT TRACTION DEVICE se ta 25, 1923. 1,469,105

Filed Nov. 14, 1922 2 Sheets-Sheet 1 cQ PARENT TRACTIONHDEVICE Filed Nov. 14 1922 2 Sheets-Sheet 2;

Sept. 25, 1923.

'tion, Figure 2 is a detail view showing more particularly the fastening means which are Patented Sept. 25, 1 923.

- unrrs .sT't'Eg,

ans

CHARLES PARENT, ,orinnnvnn, COLORADO.

TRACTION nnvrcn.

Application filed November 14, 1922. SerialNo. 600,892. f i

increasing the tractive force of propelling means and to guard agamst skidding and in its specific adaptation provides a device which may be readily applied to a drive wheel of an automobile or motor vehicle whereby the same is adapted to pull itself out of arut, depression or soft'place in the road, or propel itself over yielding and sandy surfaces, and which at the samewtime will guard against skidding on wet and slippery surfaces. In constructing the device, the same is adapted bothfor pneumatic and solid tires. p

Other objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.

While the drawings illustrate an embodiment of the invention it is to be understood that in adaptinn the same to meet difi'erent conditions and requirements, various changes in the form, proportion and minor details of construction may be resorted to without departing fronr the nature of the invention.

Referring to the accompanying drawings forming a part of the application,

Figure 1 1s a fragmentary view in eleva-.

tion showing the application of the invenin open position,

Figure 3 1s a view similar to Figure 2 showing the fastening means in closed position,

' device designed for pneumatic tires,

I Figure 7 is an end view thereof.

Corresponding and like parts are referred to in the following description and desig- Figure 4: is a top plan view of the form of" nated in the several views 'of the drawings by like reference characters.

. Ineither form of the device, the same comprises an elongated link 1 having a crossbar Qat one end and a hook 3 at the opposite end, A lug or tooth tis provided in termediate the ends of the link and project outwardly therefrom and is approximate of pyramidal form. Other lugs or teeth 5 are disposed at the sides of the link in transverse alinement with the lug or tooth a and are approximately of conoidal form. The

outer ends of the lugs or teeth 4; and'5 are 'substantiallyin the same straight line so as to engage with the surface'of the road whereby to increasethe tractive force. of the tireto which-the device is attached. The side lugs or teeth 5 are providedwith inwardly extending projections 6 forming guards which are adapted to engage opp0 site sides of the tire and prevent lateral displacement of the device when in position. In the preferableconstruction, the device consists of a single casting or forging. In

the form of'device designed more particularly for pneumatic tires, the inner or rear side of the lugs or teeth 4 and 5 is curved to conform to the transverse curvature of the tire, as shown most clearly in Figure In the form designed" for solid tires which are straight across, the inner or rear-side of the lugs or teeth 4: and 5 is straight, as

shown most clearly in Figure 7.

In practice, a plurality of traction links embodying the inventlon are connected by plain links 7 to form a chain of sufiicient length to encompass the tire of a wheel of the ends of such chain are connected by cou-. pling links 8 and lock levers. 9. A coupling link 8 is pivoted at one end to each side of a terminal link of the chain and alock lever 9 is pivoted intermediate its ends to the outer or free end ofthe coupling link 8. A notch 10 is formed in theinner edge of each an automobile or other motor vehicle and of the links 8 andiis adapted to engage a lateral stud 11 of the other terminal link of 14: Which is somewhat similar to the stud 11. In orylei'itha tthe ends fthe ha n maybe clrawm g the-1 thetermin hpJv-e the ends beyond the lugs cut away. The links 8 are pivoted to the side lugs 5 of a terminal link, and the side lugs fifthe-otherterminail link receive the studs 11. links of the chain may be drawn Close together, as indicated in F igure 3.

hat is claimecl'iS:

"A traction cle *i ee eon prisi g n eloi ggte l link having 1 cressba xat ene-ienclgancl a hook fit he ppQsit-e end, and having-e1 centrally 7 meet with the central Thus theteml disposed lug intermediate its. ends, and other h gs at alts sides ,tlta-n eirse aimethe lu s hem substantmllv 111 the same #5 h Stifilgllt illli) and the side h1g8 having llll'lfl" "pro ections farmingguards to engage opposite sides of the tire.

in testimony whereof I afiixmy signature in presenee Q1"; two.- Witnesses.

v CHARLES PARENT. lVitnesses: t v l Buil -LORD,

li Ire. MA Y'LEAGH. 

